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Posted to user@struts.apache.org by "Raible, Matt" <Ma...@cable.comcast.com> on 2003/03/04 20:15:55 UTC

select multiple="true" and setting properties

I have an ActionForm with the following:

ArrayList msoIds;

public ArrayList getMsoIds() {
	return msoIds;
}

public void setMsoIds(ArrayList msoIds) {
	this.msoIds = msoIds;
}

Now I have a JSP that displays a <select> with the ability to select
multiples:

<html:select multiple="true" property="msoIds" 
    styleId="msoIds" size="10">
    <html:options collection="userMsoList" property="value" 
        labelProperty="label"/>
</html:select>

However, as you probably know, I get an exception when Struts does
BeanUtils.copyProperties - can't convert String to ArrayList.

I tried adding indexed setters for the multiple select:

    public String getMsoIds(int index) {
        return (String) msoIds.get(index);
    }

    public void setMsoIds(int index, String msoId) {
        msoIds.set(index, msoId);
    }

but this results in the following error:

Caused by: java.lang.NoSuchMethodException: Property 'msoIds' has no setter
method

I saw stuff in the mailing list about naming the indexed properties
different, and I tried this (also renaming the <select>), but then my page
stops loading when it hits the new name (allowedMSOs).  Using tiles hides
all the errors :(.  

Any ideas are appreciated.

Matt


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Multi-level validation

Posted by Carl Fyffe <st...@sixty4bit.com>.
Currently, my project is doing validation by overidding the validate()
method of ActionForm.  We use nesting quite a bit, and today I came upon
a "hurdle".  I need to validate two nested forms.  I was expecting to be
able to do:

ActionErrors errors = nestedForm.validate(map, req);
Errors.addAll(nestedForm2.validate(map, req));

But the addAll isn't there.  Is this by design or have I missed
something?

Suggestions welcome,

Carl


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RE: select multiple="true" and setting properties

Posted by John Devine <jo...@comcast.net>.
Matt,

Does it have to be an ArrayList?

Could you get away with just an Array?

I use String arrays in my Action forms for multiple selects and haven't
had a problem with that.



-----Original Message-----
From: Raible, Matt [mailto:Matt_Raible@cable.comcast.com] 
Sent: Tuesday, March 04, 2003 1:16 PM
To: 'struts-user@jakarta.apache.org'
Subject: select multiple="true" and setting properties

I have an ActionForm with the following:

ArrayList msoIds;

public ArrayList getMsoIds() {
	return msoIds;
}

public void setMsoIds(ArrayList msoIds) {
	this.msoIds = msoIds;
}

Now I have a JSP that displays a <select> with the ability to select
multiples:

<html:select multiple="true" property="msoIds" 
    styleId="msoIds" size="10">
    <html:options collection="userMsoList" property="value" 
        labelProperty="label"/>
</html:select>

However, as you probably know, I get an exception when Struts does
BeanUtils.copyProperties - can't convert String to ArrayList.

I tried adding indexed setters for the multiple select:

    public String getMsoIds(int index) {
        return (String) msoIds.get(index);
    }

    public void setMsoIds(int index, String msoId) {
        msoIds.set(index, msoId);
    }

but this results in the following error:

Caused by: java.lang.NoSuchMethodException: Property 'msoIds' has no
setter
method

I saw stuff in the mailing list about naming the indexed properties
different, and I tried this (also renaming the <select>), but then my
page
stops loading when it hits the new name (allowedMSOs).  Using tiles
hides
all the errors :(.  

Any ideas are appreciated.

Matt


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